In keeping abreast with sale prices of RRC's, both specialist dealers at the top & auctions at the more realistic end there is no doubt that although the real money is on the early two-doors, the four-doors are certainly increasing in value, with the emphasis on original low mileage examples, followed by documented restorations. Of course they should also be enjoyed by being driven, the trick (if you are looking for future value as well) is to keep the annual mileage at a reasonable figure & MOST importantly keep the car well protected against corrosion. LR's idea of factory rust protection was a poor joke & I have my '87 Vouge professionally treated every five years with an annual inspection & 'top-up'